My favorite wholesome TV show is Gilmore Girls. It's about this youngish mom and her 16 year old daughter who live in Connecticut. It's set in the fall season and it's just about like their lives in the small town, the trials that they go through, the men that they like fall in love with, but it's completely clean, completely wholesome, and just really happy.
One of the most wholesome tv shows in my opinion is The Good Place. It's just so wholesome and it's just fun to watch, you get into the plot, has some pretty interesting plot twists, and I think the storyline's pretty cool too. So I'd definitely recommend The Good Place. The episodes are pretty short, so you can just watch like one or two and call it good.
A while ago my family was really into this series called the Good Witch Series. I believe it's on Netflix and it was just like a really wholesome series. I feel like it really had a lot of themes of like family and community in it, but it also had like a really interesting and engaging plot, so it was really fun. I would recommend.